Formula: Ca(WO4) tungstate
Specific gravity: 5.9 - 6.1
Hardness: 4½ to 5
Colour: Tan, golden-yellow, colourless, white, greenish, dark brown, etc.; colourless in transmitted light May be compositionally colour zoned.
Solubility: Slightly soluble in hydrochloric acid
Plutonic igneous environments
Metamorphic environments (common)
Scheelite is a primary mineral found in
pegmatites and also a secondary mineral in
contact metamorphic deposits and in the oxidation zone of
hypothermal (high temperature) hydrothermal veins in
granitic rocks and in alluvial deposits.
In contact metamorphic environments it may be associated with molybdenite. In hydrothermal veins it is associated with apatite, arsenopyrite, cassiterite, fluorite, topaz and hübnerite-ferberite.
Scheelite may form as an alteration product of ferberite.
Common impurities: Mo,Nb,Ta
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